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Diffstat (limited to 'ports/sysdeps/standalone/i960/nindy960/brdinit.c')
-rw-r--r--ports/sysdeps/standalone/i960/nindy960/brdinit.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/ports/sysdeps/standalone/i960/nindy960/brdinit.c b/ports/sysdeps/standalone/i960/nindy960/brdinit.c
new file mode 100644
index 000000000..9985a9930
--- /dev/null
+++ b/ports/sysdeps/standalone/i960/nindy960/brdinit.c
@@ -0,0 +1,64 @@
+/* Copyright (C) 1994, 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
+ On-Line Applications Research Corporation.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <standalone.h>
+#include "i960ca.h"
+
+/* _Board_Initialize()
+
+This routine initializes the board.
+
+NOTE: Only tested on a Cyclone CVME961 but should be OK on any i960ca board. */
+
+void
+_Board_Initialize ()
+{
+ struct i80960ca_prcb *prcb; /* ptr to processor control block */
+ struct i80960ca_ctltbl *ctl_tbl; /* ptr to control table */
+
+ static inline struct i80960ca_prcb *get_prcb()
+ { register struct i80960ca_prcb *_prcb = 0;
+ asm volatile( "calls 5; \
+ mov g0,%0" \
+ : "=d" (_prcb) \
+ : "0" (_prcb) );
+ return ( _prcb );
+ }
+
+ prcb = get_prcb ();
+ ctl_tbl = prcb->control_tbl;
+
+ /* The following configures the data breakpoint (which must be set
+ * before this is executed) to break on writes only.
+ */
+
+ ctl_tbl->bpcon &= ~0x00cc0000;
+ reload_ctl_group (6);
+
+ /* bit 31 of the Register Cache Control can be set to
+ * enable an alternative caching algorithm. It does
+ * not appear to help our applications.
+ */
+
+ /* Configure Number of Register Caches */
+
+ prcb->reg_cache_cfg = 8;
+ soft_reset (prcb);
+}